Experimental study of indoor temperature distribution for displacement ventilation system

Investigates the effects of supply air parameters and ambient parameters on the temperature field. Tests the vertical temperature distribution in the room and the temperature around the person under different supply air rates, supply air temperature, and interlayer air temperature, the comparison between numerical and experimental results shows good agreement. The experimental results under different conditions indicate that the height of the thermal stratification rises with the increasing of the supply air rate, but when the supply air rate comes up to a certain value, its influence on the vertical temperature gradient is weakened significantly. The variety of supply air temperature only influences the room temperature, but not notably the vertical temperature gradient. The increase of air temperature in the interlayer has a little effect on the temperature in the lower zone, but the temperature in the upper zone rises significantly.